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S21900 Stainless Steel vs. EN 1.8516 Steel

Both S21900 stainless steel and EN 1.8516 steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is EN 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
330
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
11
Fatigue Strength, MPa 380
570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 510
660
Tensile Strength: Ultimate (UTS), MPa 710
1100
Tensile Strength: Yield (Proof), MPa 390
910

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 980
470
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.7
Embodied Energy, MJ/kg 43
22
Embodied Water, L/kg 160
61

Common Calculations

PREN (Pitting Resistance) 25
5.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
120
Resilience: Unit (Modulus of Resilience), kJ/m3 380
2190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
39
Strength to Weight: Bending, points 23
30
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 15
32

Alloy Composition

Carbon (C), % 0 to 0.080
0.2 to 0.27
Chromium (Cr), % 19 to 21.5
3.0 to 3.5
Iron (Fe), % 59.4 to 67.4
94.6 to 96.1
Manganese (Mn), % 8.0 to 10
0.4 to 0.7
Molybdenum (Mo), % 0
0.5 to 0.7
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035